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# -*- coding: utf-8 -*-
# This file is part of emesene.
#
# Emesene is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# emesene is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with emesene; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import gc
import sha
import gtk
import ImageAreaSelector
class Avatar( object ):
'''this class represent an avatar'''
def __init__( self, path, avatarsPath, dontCache=False,
height=96, width=96, thumbHeight=48, thumbWidth=48,
resizeDialog=False ):
if path == '':
self.noAvatar()
elif not self.loadExisting(path):
self.loadNew(path, avatarsPath, height, width, thumbHeight,
thumbWidth, resizeDialog)
def loadNew( self, path, avatarsPath, height, width, thumbHeight,
thumbWidth, resizeDialog ):
self.height = height
self.width = width
self.thumbHeight = thumbHeight
self.thumbWidth = thumbWidth
pixbuf = gtk.gdk.pixbuf_new_from_file( path )
if resizeDialog:
areaSelector = ImageAreaSelector.ImageAreaSelectorDialog(pixbuf)
response, pixbuf = areaSelector.run()
if response == gtk.RESPONSE_CANCEL:
self.noAvatar()
return
self.image = self.scale( pixbuf, width, height )
self.thumb = self.scale( pixbuf, thumbWidth, thumbHeight )
imagePath = avatarsPath + os.sep + 'temp.png'
thumbPath = avatarsPath + os.sep + 'temp_thumb.png'
self.image.save( imagePath, 'png' )
self.thumb.save( thumbPath, 'png' )
f = file(imagePath, 'rb')
hash = sha.new(f.read())
f.close()
self.imagePath = avatarsPath + os.sep + hash.hexdigest() + '.png'
self.thumbPath = avatarsPath + os.sep + hash.hexdigest() + '_thumb.png'
if not os.path.exists( self.thumbPath ):
os.rename( thumbPath, self.thumbPath )
else:
os.remove( thumbPath )
if not os.path.exists( self.imagePath ):
os.rename( imagePath, self.imagePath )
else:
os.remove( imagePath )
# TODO: instead of removing the old we could just not create the new ones..
if os.path.dirname( os.path.abspath( path ) ) == os.path.abspath( avatarsPath ):
os.remove( path )
thumbName = path.split( '.png' )[ 0 ] + '_thumb.png'
try:
os.remove( thumbName )
except:
print 'could not remove ' + thumbName
def noAvatar(self):
self.imagePath = ''
self.thumbPath = ''
self.image = None
self.thumb = None
self.height = 0
self.width = 0
self.thumbHeight = 0
self.thumbWidth = 0
def loadExisting( self, path ):
self.imagePath = path
self.thumbPath = path[:-4] + '_thumb.png'
try:
self.image = gtk.gdk.pixbuf_new_from_file( self.imagePath )
self.thumb = gtk.gdk.pixbuf_new_from_file( self.thumbPath )
except:
return False
self.height = self.image.get_height()
self.width = self.image.get_width()
self.thumbHeight = self.thumb.get_height()
self.thumbWidth = self.thumb.get_width()
return True
def getImagePath( self ):
return self.imagePath
def getThumbPath( self ):
return self.thumbPath
def getImage( self ):
return self.image
def getThumb( self ):
return self.thumb
def scale( self, image, width, height ):
h,w = image.get_height(), image.get_width()
width_max, height_max = width, height
width=float( image.get_width() )
height=float( image.get_height() )
if ( width/width_max ) > ( height/height_max ):
height=int( ( height/width )*width_max )
width=width_max
else:
width=int( ( width/height )*height_max )
height=height_max
image = image.scale_simple( width, height, gtk.gdk.INTERP_BILINEAR )
gc.collect() # Tell Python to clean up the memory
return image
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